mistat (version 2.0.4)

STRESS: Stress Levels

Description

Results of a 33 factorial experiment to investigate the effects of three factors \(A, B, C\) on the stress levels of a membrane \(Y\). The first three columns of the data provide the levels of the three factors, and column 4 presents the stress values.

Usage

data(STRESS)

Format

A data frame with 27 observations on the following 4 variables.

A

levels of factor \(A\), a numeric vector

B

levels of factor \(B\), a numeric vector

C

levels of factor \(C\), a numeric vector

stress

stress levels of a membrane \(Y\), a numeric vector

Examples

data(STRESS)

summary(                                       
  aov(stress ~ (A+B+C)^3 +I(A^2)+I(B^2)+I(C^2),
      data=STRESS))